We mistakenly think that the present experience is the cause. It is not. Depression can come from this distortion. We can be hit by some gigantic wave of past experience. Without our knowledge or permission we are overburdened with a replay of the emotional past.
Few suicides are the result of a single present experience.
Most suicide comes from the replay of many past memories. Penfield was a young neurosurgeon who was working to relieve patients of the temporal lobe epilepsy. While they were yet awake, and under local anesthesia, he would stimulate single cells in the memory section of the temporal lobe. He found that when a single cell would be stimulated, the patient would experience a past events as if they were happening live now. Everything was there, taste , touch, sight, sound, attitudes, thoughts, feelings and sequential events.