Breathing deeply in and out without a pause between the in and the out will often flush the feelings. There are several aids to this process that can be employed. The first is to simply put a small, hard pillow between the shoulder blades and feel the pressure gently opening the chest from behind as you lie on the floor. Another aid is flower essences, a vibrational remedy. This releases the congested emotional energy that really comprises the block.
Music can be of powerful assistance in releasing grief.
Piano, harp, violin, and cello all stimulate the heart. Many people find the album Somewhere in Time to be perfect. Also effective is anything by Ray Lynch , particularly No Blue Thing and Deep Breakfast. If you know a certain piece affects you by bringing up tears, you can tape it a number of times in a row and use that. With music the rule of thumb is whatever moves you.