Tu BiShvat

(23) When you enter the land and plant any tree for food, you shall regard its fruit as forbidden. Three years it shall be forbidden for you, not to be eaten. (24) In the fourth year all its fruit shall be set aside for jubilation before the LORD; (25) and only in the fifth year may you use its fruit—that its yield to you may be increased: I the LORD am your God.

Four New-Years could be found: On the first of Nissan is Rosh HaShana for kings..., on the first of Elul is Rosh HaShana for animal's tithe..., on the first of Tishrei is Rosh HaShana for years... On the first of Shvat is Rosh HaShana for the tree, according to Beit Shammai. Beit Hillel says – on the fifteenth of this month.

One day, Honi was walking along the road when he saw a certain man planting a carob tree. Ḥoni said to him: This tree, after how many years will it bear fruit? The man said to him: It will not produce fruit until seventy years have passed. Ḥoni said to him: Is it obvious to you that you will live seventy years, that you expect to benefit from this tree? He said to him: That man himself found a world full of carob trees. Just as my ancestors planted for me, I too am planting for my descendants. Ḥoni sat and ate bread. Sleep overcame him and he slept. A cliff formed around him, and he disappeared from sight and slept for seventy years. When he awoke, he saw a certain man gathering carobs from that tree. Ḥoni said to him: Are you the one who planted this tree? The man said to him: I am his son’s son. Ḥoni said to him: I can learn from this that I have slept for seventy years, and indeed he saw that his donkey had sired several herds during those many years.

(1) Know! when a person prays in the fields, all the flora enters into the prayer, helping him and strengthening his prayer. This is the reason prayer is called SiChah (conversation), the concept of “SiaCh (shrub) of the field” (Genesis 2:5). All the shrubs of the field empower and assist his prayer.

(2) This is the concept of “And Yitzchak went out laSuaCh (to converse) in the field” (ibid. 24:63)—his prayer was with the help and power of the field. All the flora of the field empowered and assisted his prayer, on account of which prayer is called SiChah.

(3) Therefore, the Curse includes the statement: “and the soil will not yield its produce (yevul)” (Deuteronomy 11:17). For all the earth’s produce must empower and assist the prayer. But when this is impeded or delayed, it thus states: “and the soil will not yield its produce.”

(4) Now, even when a person does not pray in the fields, the earth’s produce—i.e., whatever is near the person, such as his food and drink and the like—aids his prayer. But when he is in the field, because he is particularly close to these things, all the flora and all the soil’s yevul (produce) empower his prayer.

(5) And this is YeVUL—the first letters of Vayeitzei Yitzchak Lasuach Basadeh (“And Yitzchak went out to converse in the field”). All the produce of the field prayed together with him.​​​​​​​