Wisdom from the Torah.

• Goodness accompanied by egocentric intention alone, and thus not aligned with the bigger picture, can be spiritually disastrous.
• Not honoring one's elders, and deciding halakhah in front of one's teacher without permission, creates an energetic break with the lineage (see Talmud Yerushalmi, Shevi'it 16a).
• Doing ceremony while in a state of inebriation, wether on alcohol or other drugs, can result in serious imbalance.
• Being in a state of ego rather than bitul, while presuming that one is doing the will of God, can be disastrous for spiritual life. The exception to this is a rare case of a tzaddik, who is in such a steady state of deveikut that the individualized expression or word is the will of God.
• Insufficient awe and respect for the divine energies jeopardizes one's spiritual position within.

Source : Torah as a Guide to Enlightenment