Glories of Tulasi Worship by Lord Narayana

Lord Narayana Explains:
The sanctifying Tulasi tree will grow in Goloka, on the coast of the Viraja River, on the rasa-dance site, in the forests of Vrindavana, Bhandira, Champaka, Chandana, and in the groves of Madhavi, Ketaki, Kunda, Mallika and Malati.
You will live in sacred places and bestow the highest religious merit.
All the holy spots will converge and reside at the root of the Tulasi tree, and thus spiritual merits will accrue to all.
O fair one, all the demigods and I will wait there to gather the falling Tulasi leaves.
Whoever will be moistened or anointed with the water that has been sanctified by Tulasi leaves, will reap the benefits of having bathed in all the sacred rivers and performed all kinds of sacrifices.
Lord Hari will not be as pleased with the gift of a thousand jars of honey as with one Tulasi leaf.
Offering one such leaf as a gift will bring the same reward obtained by offering millions of cows.
If one offers Tulasi leaves during the month of Kartika, he gets the same rewards as those just mentioned.
If, at the time of death, one drinks or gets the Tulasi-leaf water, one will be freed of all his sins and proceed to Vaikuntha.
Whoever drinks the Tulasi-leaf water daily will be redeemed in his lifetime and receive the benefit of a dip in the Ganges.
Whoever plucks a Tulasi leaf, keeps it on his person, and then leaves his body in a holy place, will go to Visnuloka.
Anyone who worships Me with this leaf daily will reap the blessings of a hundred thousand horse sacrifices.
Anyone who leaves his body holding a Tulasi leaf in his hands will be saved from all sins.
Anyone who wears a necklace composed of Tulasi wood, will surely, at every step, get the reward of a horse sacrifice.
Whoever breaks his promise while holding the Tulasi leaf will go to the Kalsutra hell for as long as the sun and moon last.
Anyone who gives false evidence in the presence of the Tulasi leaf, will go to the Kumbhipaka hell for as long as the lifespans of fourteen Indras.
Whoever at the time of death drinks or gets a little Tulasi-leaf water will certainly proceed to Vaikuntha, leaving in a jeweled airplane.
Lord Hari will decapitate that person who, on the day of the new moon or the full moon, or on the twelfth or last day of the lunar month, or after being anointed with oil just before taking a bath, or at noon, night, daybreak or sundown, or in a state of impurity or in one's night dress--will cull or pluck the Tulasi leaf.
O chaste one, even if such a leaf is kept for three nights and becomes dry, it can still be employed in connection with funeral ceremonies, vows, gifts, consecration of temples and the worship of demigods.
If Tulasi leaves that were offered to Lord Visnu have fallen on the ground or on water are then properly washed, they may still be used for other sacred purposes.
You will always be the presiding deity of Earth, and at the same time you will always sport with Sri Krsna in solitude in Goloka. You will also be the presiding deity of the Gandaki River, and thereby shower Bharatvarsha with religious merit.
You will further be the wife of the ocean of salt, which is My partial expansion. O chaste goddess, you will always remain personally by My side and enjoy My company, as Laksmi does