As the High Holiday seasons comes to an end, the strong focus on self improvement does not usually continue to permeate our thoughts and conversation. However, Hashem's conversation with Kayin in Parshat Bereishit provides an additional reminder of the teshuva process, as well as a springboard for understanding the human pysche. 

"But to Kayin and to his offering He did not turn, and it annoyed Kayin exceedingly, and his countenance fell. Hashem said to Kayin, 'Why are you annoyed, and why has your countenance fallen? Is it not so that if you improve, it will be forgiven? If you do not improve, however, at the entrance, sin is lying, and to you is its longing, but you can rule over it.'" (Genesis 4:5-7)

Hashem explained to Kayin that he was being given the opportunity to correct a mistake and to improve a rejected offering. Radak, a 12th century medieval commentator, offers additional insight into Hashem's words. He explains that Hashem was pointing out to Kayin that he had a choice in the manner which he reacted to this disappointing situation. Kayin would be given the opportunity to improve his offering, and, as such, Hashem would forgive him and overlook his initial shortcomings. However, Kayin did not heed this warning, and instead killed his brother, Hevel, out of resentment and jealousy.

Radak explains that the tendency to justify and belittle our flaws is an approach that will continuously hold us back from growth and self improvement. Hashem clearly delineated the active role that we play in choosing our path to self improvement or regression. Hashem reminds us that challenges constantly await us, "but you can rule over it." We will often face stumbling blocks, but have both obvious and hidden potential to overcome those obstacles.

Chag Sameach and Shabbat Shalom!