Musar sobre I Samuel 2:9

But if he guards all three properly, namely, purity (temimut) of thought, examination, and trust - then he will walk securely in truth and no evil will befall him, as Chana said in her prophecy: "He will guard the feet of His pious ones" (Shmuel 2:9), and likewise David said: "He shall not forsake His pious ones; they will be guarded forever" (Tehilim 37:28).

That which will help greatly in acquiring Chasidut is great observation and much contemplation. For when a person contemplates much on G-d's great exaltedness, blessed be He, and His absolute perfection, and the immeasurably great distance between His greatness and our lowliness, he will be filled with fear and trembling before Him.

And when he contemplates G-d's great lovingkindness to us, His great love for the Jewish people, the closeness of the Just to Him, the virtue of Torah and mitzvot, and other similar investigations and studies, certainly, a powerful love will ignite within him, and he will choose and lust to cling to Him. For when he sees that the Creator, blessed be He, is literally (mamash) like a father to us, and has mercy on us as a father on his sons, there will then awaken within him a desire and longing to reciprocate back to Him, as a son to his father.