A guru should teach like rain falling everywhere, but should not make disciples recklessly. The disciple shares in the karma, whether good or ill. Spend your wealth in feeding houses, give to all beings, but do not give your son to an unworthy person for upbringing. Do not sow seed on barren rock where there is no moisture at the root; those who persist there will be cheated in the end. Share your innermost wisdom only with saints. Keep your wife like a servant in the household; if you indulge her, she claims a share of karma. Test for purity first; do not be dazzled by surface color. Says Tuka, take only that which will not lead to loss.