"Blessed are those who keep his statutes
and seek him with all their heart -"
Keep & seek: these two words are far from passive. Why? Because while God pursues us, we must ACTIVELY pursue Him. It would be foolish to ask God to live out these commands of keeping his statutes and seeking him, for it is our living that is to be done. Statutes, being rules, are meant to be kept and will encompass blessing as well to the man who keeps them.
Another though is about the word all. A heart can not physically be whole and in multiple places at once. Therefore, when adamantly searching for God, one must do so with the entirety of his or her heart. It is all or nothing. Be with Him or be away from Him. You can not serve two masters. So take the truth that comes from obeying His commands and sweetly stir it with the passion that comes from seeking Him with the fullness of your heart to stand firm in the knowledge that you are blessed.