In the third example, the demonstrative pronoun these refers to a forest in front of the father and son; those refers back to the days that have passed away. The place indicating adverb here refers to the place where the father and son are standing and talking.
In the third example, the indicative pronoun these refers to a forest in front of the father and son; Location indicates the adverb here refers to where the father and son stand and speak.
In the third example, the demonstrative pronoun "these" refers to a forest in front of father and son, and "those" refers to the days that have passed away. The adverb here refers to the place where father and son stand and talk.<br>