There are many types of high, so it's difficult to explain. It's extremely personal in a way that you want to share with everyone as it likely is one of the best times of your life sitting there and feeling the ecstasy and glory of everything around you, but I'm not confident there's a language that can express the feelings of joy and pleasure in a way other than to spark curiosity in a listener. I can certainly try though to describe some more positive experiences.

All wayward thoughts, the problems that bog you down, the sad thoughts and feelings that creep in or the little worries about what you need to do today, tomorrow, next week, they don't appear as tasks or problems, if they appear at all. If they do, there is an unbridled energy towards how well you're going to handle them, and then they're out of your mind. As you approach the peak of your state, there is a rush to your head like a warmth, a little unnerving at first, but it will just let loose over you and you'll feel your body let go of stresses and tension you never realized you had.

Uncontrollably, you'll start to smile and want to share what you're feeling with anyone around, finding the joy of life in absolutely everything. Everything will seem more real, with small details that mesmerize you and astound you and you focus on with incredible attention and admiration. Imagine the scenes you've probably seen in movies or TV shows where someone is stunned by the beauty of a piece of art or by music, and then try to imagine how powerful the emotions would have to be to stop you in your tracks and just gaze upon something that registers to you as pure beauty. I once stared at puffy white clouds against a huge blue sky, and they had a silver shimmer outlining them, each cloud seeming "happy" to just be a cloud floating in the sky, sharing their happiness with the world below them. As I took in their happiness, I felt I "gave it back" and they loved and appreciated our connection so much, they shimmered even greater. The vastness of how far the clouds stretched and reached felt immense as logically I could know they stretched for kilometers, but at the same time it felt as if we were in the same room sharing our positiveness with one another. (To this day I cannot look at clouds without smiling, even when completely sober)

Tastes and feelings are taken to something else, as even sipping on a simple glass of juice felt like drinking from the divine, whatever that means, and every molecule of the juice was friendly and soothing to every part of me it touched, and gladly gave me its energy to help me feel stronger and better, and I thanked every drop as it rejuvenated me because I felt so close to each and every moment and was almost brought to tears as I thought of how much work had to happen for this fruit to become a juice, the care and love to grow the plants and to bring them to fruition and now the juice shared the same love and care it had with me as it gave me energy and refreshed me.

If you're with people, you want nothing but the best for them and to tell them how much they matter and how wonderful they are. You never lie, but you also find the positive in everything and even if sad subjects do come up, you cannot help but approach it from a strategy of understanding, and conflicts are anything but that, you just want to show that no matter what they are loved and appreciated and that they matter. Even telling of such subjects isn't an offense, it's a brave and human act of someone who wants to grow, and you want to help them grow, so you even thank them for the offenses and want to help them take the next steps they want to become the best "them" they can be.

During this time, your entire body relaxes in ways maybe you've felt before. If you've ever had a partner and held them at night and realized you didn't know when your body ended and theirs began, it's a similar experience, but when you're on a high, it's an intensity of comfort and happiness that really cannot be described. For hours, you barely feel the weight of your own body while having full control over it.

For other highs, everything just seems more "intense", both the good and sometimes the bad (hence, bad trips). You will think and understand yourself in ways you consciously avoid, and it can go either way depending on the conditions you prepare for. Directing your attention to the simple things like calming music, some gentle twinkling lights, it brings you to the same joy where you just can't compare it to any sober experience as everything is enhanced. There is a beauty and "feel" that inhabits the world as you see it and all things have a significance you cannot ignore.

I doubt this really conveys it, but I tried :)