Which line in the excerpt from Eugene O'Neill's beyond the horizon reflects the idea of pursuing ones dreams?

And I'd promise myself that when I grew up and was strong, I'd follow that road, and it and I would find the sea together. (With a smile) You see, my making this trip is only keeping that promise of long ago.

Explanation:

Eugene O'Neill's full length play "Beyond the Horizon" revolves around the theme pf failed adventures and the missed opportunities of a person. Though it ended in a tragic way, the play delves deep into the characters of the two protagonists who went against their natures,

The excerpt is from Act I scene i where Robert and Ruth were reminiscing about their childhood days. Robert admits that he had always wanted to be a traveler and see the world whereas Andrew love being at home. Their love for the same woman, Ruth, led to their going against their natures. Andrew traveled to sea and Robert stayed at home and did farming.

The idea of pursuing one's dreams is evident in the lines spoken by Robert when he talks of going on a journey that is a fulfillment of "keeping that promise of long ago".

The line in the excerpt from Eugene O'Neill's "Beyond the Horizon" that reflects the idea of pursuing one's dreams is:

And I'd promise myself that when I grew up and was strong, I'd follow that road, and it and I would find the sea together. (With a smile) You see, my making this trip is only keeping that promise of long ago.

Explanation:

The selected lines are showing the character as he makes plans for the future about following his dreams and illusions and makes them as important as a promise. He really plans to keep his word on this promise and the use of expressions like "I'd follow that road", and "I would find the sea together" support that idea.