Breathing life into is a powerful phrase in the English language, however, it is always good to diversify your vocabulary. Here are some synonyms that can be used in lieu of "breathing life into":
1. Revitalizing - this word means to restore energy to something or to give new life.
2. Rejuvenating - this is another way to describe the act of revitalizing something, implying that it is being made young again.
3. Resuscitating - often used in medical contexts, this word relates to bringing back to life something that was considered dead or dying.
4. Refreshing - this could be used to describe the act of giving something a quick boost of energy or new life.
5. Invigorating - this word implies that something is given a new sense of strength and vitality.