This means - Commencing While using the primeval sound “Om” the mantra suggests - “I pray towards the progeny of Anjana as well as son of the Wind God (Vayu) to sharpen my intellect and grant me wisdom and intelligence.” ॐ आञ्जनेयाय विद्महे वायुपुत्राय धीमहि। तन्नो हनुमत् प्रचोदयात्॥ हनुमान गायत्री https://thedeepdirectory.com/listings13085776/hanuman-chalisa-an-overview