“ English Translation A baal keri should think about the Shema in his heart [i.e., instead of saying it out loud] and should not recite the blessings, either before or after. On food, he makes the blessing after, but not the blessing before. Rabbi Yehudah says: He blesses before and after. Explanation
Baal keri: Baal keri is a Mishnaic euphemism for a person who has had a seminal emission but has not yet been purified according to the relevant laws.
Think about: I.e. he should say the words in his head, concentrating on their meanings.
Blessings: I.e. the blessings of the Shema. ”