Being continually filled with the Holy Ghost is the only way to overcome satanic incursion.
Satan has the capability of overcoming you when you are empty of the Holy Ghost.
He will come in an attempt to sweep you off your feet but with the Holy Ghost within you, He will lift up a standard against satan. Is.59:19
The Holy Spirit is therefore your stabilizer & defense against all satanic offence.
Walk in the spirit, the flesh will not prevail and satan will be kept faraway. Gal 5:16
At all times be sober, be vigilant, be watchful, be prayerful, be spirit-filled, be alert, be cautious. 1 Pet.5:8; Eph.6:18