Do the souls who are descending to take birth pass by the souls who are ascending after death?

Sri Chinmoy: No. There are two roads. They do not cross. Descent has one road; ascent has another road. They are not like a two-lane highway. If, while descending, the soul is stationary at one particular place, then it can happen, but usually it does not. While there is movement one soul is descending, another soul is ascending it does not happen.