Allah [swt] says [in hadith Qudsi], “…….My servant does not draw near to Me with anything more beloved to Me than the obligatory duties that I have placed upon him. My servant continues to draw nearer to Me with optional deeds so that I shall love him.” [Bukhari] ‘So drawing closer to Allah – the Most Perfect – in this blessed month, can be achieved by fulfilling one’s obligatory duties; and also reciting the Qur’an and reflecting upon its meanings, increasing in kindness and in giving charity, in making Du’a (supplication) to Allah, attending the Taraweeh Prayer, seeking out Laylatul-Qadr (the Night of Power and Pre-Decree), a night which is better than a thousand months, attending gatherings of knowledge, and striving in those actions that will cause the heart to draw closer to its Lord and to gain His forgiveness. Our level of striving in this blessed month should be greater than our striving to worship Allah in any other month, due to the excellence and rewards that Allah has placed in it.
Likewise from the great means of seeking nearness to Allah in this month is making I`tikaaf (seclusion in the mosque in order to worship Allah) – for whoever is able.’ Ibn al-Qayyim said: “Allah also prescribed I`tikaaf for them, the objective being that the heart becomes fully preoccupied with Allah – the Most High – concentrated upon Him alone, and cut-off from being preoccupied with the creation. Rather, the heart is only engrossed with Allah – the Most Perfect – such that loving Him, remembering Him, and turning to Him takes the place of all the heart’s anxieties and worries, so that he is able to overcome them. Thus all his concerns are for Allah, and his thoughts are all directed towards remembering Him and thinking of how to attain His Pleasure and what will cause nearness to Him and what leads him to feel contended with Allah instead of people. This in turn prepares him for being at peace with Allah alone, on the day of loneliness in the grave, when there will be no one else to give comfort, nor anyone to grant solace, except Him. So this is the greater goal of I`tikaaf.”