The posuk says(1:2) “Adam Ki Yakriv Mikem Korban L’Hashem”, the pasuk calls a person’s korban “A Korban to Hashem”. The end of the pasuk says, “Min HaBiheima… Takrivu Es Korbanchem”, referring to the Korban as “your Korban”. Is it Hashem’s Korban or is it yours?
The Tallilei Oros answers with the Shach who says that before bringing a korban a person must sacrifice himself to Hashem. Only then will the act of slaughtering and burning the animal be Michaper. If a person does not sacrifice himself then this ritual of animal slaughter is devoid of all meaning.
With this idea, he says we can explain this Pasuk. The first part says, “Adam Ki Yakriv Mikem” a person who sacrifices from within. That is a Korban L’Hashem. However continues the pasuk, “Min HaBiheima” if he is only sacrificing the animal then it is the persons own korban and not for Hashem.
How can we learn from this, after all we don’t do korbanos today so whats the use for us?
Today we have tefillah, which ChaZaL instituted to replace the korbanos. ChaZal gave us a set text which we have to “offer up” the same way as we offered up animals. So using this lesson we see clearly that Hashem wants us to daven with a pure heart from within! “Odom Ki Yakriv Mikem” a person (should) sacrifice from within, However “Min HaBiheima” if he is only sacrificing the animal – in the case of davening, saying the words – then it is the persons own korban and not for Hashem.
If a person does not sacrifice himself (daven with kavona) then his davening is devoid of all meaning.