736
Śrīmad-Bhāgavatam
[Canto 4, Ch. 19]
yajña , there are many big trees in the forests, but they do not supply sufficient fruits and honey. Thus everything is dependent on the performance of  yajña . The best way to perform  yajña  in this age is to spread the  saṅkīrtana  movement all over the world.
TEXT 9
सिन्धवो रतनिकरान् गिरयोऽभं चतुर्विधम् ।  
 उपायनम्रुपाजदुः सर्वे लोकाः सपालकाः ॥ ९ ॥
sindhavo ratna-nikarān 
    girayo 'nnam catur-vidham 
    upāyanam upājahruḥ 
    sarve lokāḥ sapālakāḥ
sindhavaḥ —the oceans;  ratna-nikarān —heaps of jewels;  girayaḥ —the hills;  annam —eatables;  catuḥ-vidham —four kinds of;  upāyanam —presentations;  upājahruḥ —brought forward;  sarve —all;  lokāḥ —the people in general of all planets;  sa-pālakāḥ —along with the governors.
TRANSLATION
King Pṛthu was presented with various gifts from the general populace and predominating deities of all planets. The oceans and seas were full of valuable jewels and pearls, and the hills were full of chemicals and fertilizers. Four kinds of edibles were produced profusely.
PURPORT
As stated in  Īśopaniṣad , this material creation is supplied with all the potencies for the production of all necessities required by the living entities—not only human beings, but animals, reptiles, aquatics, trees, etc. The oceans and seas produce pearls, coral and valuable jewels so that fortunate law-abiding people can utilize them. Similarly, the hills are full of chemicals so when rivers flow down from them the chemicals spread over the fields to fertilize the four kinds of foodstuffs. These are technically known as  carvya  (those edibles which are chewed),  lehya  (those which are licked up),  cūṣya  (those which are swallowed) and  peya  (those which are drunk).
Pṛthu Mahārāja was greeted by the residents of other planets and their presiding deities. They presented various gifts to the King and acknowledged