There is a minhag with many chasidim to prepare before davening with psalms, mussar, chasiduth, or any learning to awaken the heart to prayer. Was this a practice of the Besht or was it taken on by later rebbes? We have seen in S.A. 93 that any learning after Oloth Hashachar prior to davening is assur (with 4 exceptions)
It is permissible to learn until Olot HaShachar. However, once Olot Hashachar comes, it is forbidden to begin learning until one has prayed. Some are lenient to permit learning after Olot HaShachar until close to HaNetz HaChama. Nonetheless, it is permissible to learn even after Olot Hashachar in any of the following three circumstances:
if one is learning in the place where a tzibbur will come to daven,
if one asked a friend who was not learning to remind one to daven before the latest time of Shema and Tefilla,
or if one was teaching Torah to a group or is learning in a group and if there is no concern that one will miss the latest time for Shema.
Some add that it is permissible if one is not learning in-depth.
so is there a heter for this behaviour?