Is it permissible to perform the night prayer with the intention of purifying the soul, thanking Allah, and seeking reward simultaneously?

Night prayer (Qiyam al-Layl) is one of the best acts of devotion and obedience, and a means of purifying the soul, showing gratitude to Allah, and seeking His reward. It was obligatory at the beginning of Islam, then became a confirmed Sunnah (practice). For this reason, it has remained the constant practice of the righteous and the way of the successful. A Muslim can intend by performing night prayer the cultivation and purification of their soul, or showing gratitude to Allah for His blessings, or seeking His reward and forgiveness for their sins, or combining these intentions.