View source for It mentions dhyana and raja-yoga in that chapter (sixth chapter of Bhagavad-gita). Can you explain the meaning of these two yogas?

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{{terms|"It mentions dhyana"|"and raja-yoga in that chapter. Can you explain the meaning of these two yogas"}}
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<div id="Lectures" class="section" sec_index="4" parent="compilation" text="Lectures"><h2>Lectures</h2>
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<div id="Bhagavad-gita_As_It_Is_Lectures" class="sub_section" sec_index="0" parent="Lectures" text="Bhagavad-gita As It Is Lectures"><h3>Bhagavad-gita As It Is Lectures</h3>
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<div id="LectureonBG22025SeattleOctober141968_0" class="quote" parent="Bhagavad-gita_As_It_Is_Lectures" book="Lec" index="83" link="Lecture on BG 2.20-25 -- Seattle, October 14, 1968" link_text="Lecture on BG 2.20-25 -- Seattle, October 14, 1968">
<span class="link">[[Vanisource:Lecture on BG 2.20-25 -- Seattle, October 14, 1968|Lecture on BG 2.20-25 -- Seattle, October 14, 1968]]: </span><div class="text"><p style="display: inline;">Madhudviṣa: It mentions dhyāna (pronounces "dahayana") and rāja-yoga in that chapter. Can you explain the meaning of these two yogas?</p>
<p>Prabhupāda: Hm?</p>
<p>Madhudviṣa: Dahyana. D-h-y-a-n-a.</p>
<p>Prabhupāda: Dhyāna. Dhyāna-yoga, meditation.</p>
<p>Madhudviṣa: That's meditation. And is rāja-yoga the same?</p>
<p>Prabhupāda: Yes.</p>
<p>Madhudviṣa: Both meditation processes?</p>
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