According to the scriptures cited, what are the guiding principles for giving charity?

Chapter 14 references the Taittiriya Upanishad and other scriptures to outline several key principles for giving. First and foremost, giving should always be done with faith, as anything given without faith is not truly received. Beyond faith, one is also advised to give out of respect for authority, such as a king's command or a scripture's command. Giving can also be motivated by social considerations, such as giving out of shame or giving gifts during marriages and other customs to maintain friendships and social harmony. Baba himself used the concept of giving to teach mercy, charity, and self-control, which ultimately lead to extreme happiness for the devotee.