What does procrastination have to do with spirituality? A lot: it shows the deep problems in your psyche that happen when we are not being honest about what we want.
Enotional honesty with ourselves is necessary for a quiet mind, and a quiet mind is essential to the spiritual search.
The real reason for chronic procrastination is that we are not listening to our feelings and being honest about what we really want. Often, this is no simple matter. The common advice to just push through procrastination using positive thinking is damaging and does not work in the long-term.