"Heaven bless this house" can be expressed in a variety of ways depending on cultural and personal beliefs. Some synonyms for this phrase could include "May God's grace be upon this dwelling," "May this home be blessed by divine forces," "May the angels watch over this house," or "May this home be protected by heavenly powers." Other variations may include asking specific deities or spirits to bless the home such as "May Lakshmi bless this house" for those who follow Hinduism or "May the ancestors bestow blessings upon this home" for those who practice African traditional religions. Ultimately, the intention behind all these phrases remains the same - to ask for blessings and protection for the household.